As part of the EMIMEP Master 1 program, we had the privilege of conducting a hands-on lab in collaboration with AMCAD Engineering, a renowned company specializing in cutting-edge solutions for RF and microwave device characterization, modeling, and circuit design.

In this lab, titled « DC and Pulse IV S-Parameters Measurements Using TRL De-Embedding Calibration Method, » we explored innovative approaches to transistor characterization and modeling, leveraging AMCAD’s flagship software, IVCAD. This practical experience served as an excellent bridge between theoretical knowledge and industry-relevant applications, equipping us with valuable insights into advanced RF engineering techniques.

About AMCAD Engineering

AMCAD Engineering provides state-of-the-art tools and expertise for the global semiconductor and telecommunications industries, enabling engineers to optimize RF transistors and circuits with unmatched precision. Their tools, such as IVCAD software and the AM3100 Pulsed IV system, are widely used for tasks ranging from transistor modeling to power amplifier design. Based in Limoges, France, the company works closely with academic institutions, research centers, and industries worldwide to push the boundaries of RF design and testing.

The Lab Experience

The primary focus of this lab was to study and characterize the behaviour of RF transistors under varying operating conditions. By utilizing AMCAD’s IVCAD platform, we gained exposure to:

1. Accurate Calibration Techniques: We employed Thru-Reflect-Line (TRL) calibration to de-embed unwanted external effects, ensuring precise measurements of S-parameters.
2. DC and Pulsed IV Measurements: We explored the differences between static (DC) and dynamic (pulsed) measurements, highlighting the importance of controlling thermal effects like self-heating in RF devices.
3. Enhanced Modeling and Analysis: Through the characterization process, we observed how transistor parameters shift with operating conditions, an essential step in designing high-performance RF circuits.

Key Outcomes

• Industry-Relevant Skills: The lab provided hands-on experience with professional tools like IVCAD and advanced methodologies for accurate device modeling and characterization.
• Deep Understanding of RF Device Behavior: We gained insights into the impact of parasitics, thermal effects, and calibration accuracy on transistor performance, which are critical for reliable RF circuit design.
• Collaboration with Industry Leaders: Working with AMCAD Engineering gave us a first-hand look at how companies are innovating in the RF and microwave engineering fields.

Conclusion

This lab experience not only reinforced our theoretical knowledge but also provided practical skills that are essential for careers in RF and microwave engineering. Collaborating with AMCAD Engineering was an inspiring opportunity, showcasing the critical role of innovative tools and expertise in driving advancements in the semiconductor industry.

Safa Ayadi  (EMIMEP student)